Question

When a ray is refracted through a prism, then (a)Angle i=angle d
(b) angle i=angle e+angle d
(c)angle d = angle e
(d) angle i >angle r
Choose the correct option​

Answer 1

Answer:

∠A represents the angle of a prism while ∠D represents the angle of deviation and both are correctly marked.

As angle of refraction (∠r) is the angle formed by the refracted ray with the normal and is also correctly marked.

But ∠i and ∠e are the angles made by the incident ray with the normal and emergent ray with the normal respectively and thus are incorrectly marked.